There are 2 titles associated with this person.

@book{ wphp_8639
  author={Thomson,Anna and Thomson,Harriet},
  year={1804},
  title={The Pride of Ancestry: or, Who Is She? A Novel. In Four Volumes. By Mrs. Thomson, author of Excessive Sensibility—Fatal Follies—The Labyrinths of Life—Geraldine—and Robert and Adela, &c.},
  publisher={Parsons and Son},
  address={London},    }
@book{ wphp_8751
  author={Thomson,Harriet and Thomson,Anna},
  year={1807},
  title={Laurette; or, The Caprices of Fortune. A Novel. In Three Volumes. By Mrs. Thomson.},
  publisher={Minerva Press, Lane, Newman, and Co.},
  address={London},    }